1. Department of Pesticide Regulation, California Environmental Protection Agency, Sacramento, CA 95812, USA
2. Waterborne Environmental, Inc., Leesburg, VA 20175, USA
3. Office of Pesticides, US Environmental Protection Agency, Washington, DC 20460, USA
4. Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
5. National Research Center for Environmental Toxicology, the University of Queensland, Brisbane QLD 4108, Australia